<?php
/**
 * Created by PhpStorm.
 * User: Qch
 * Date: 2016/9/8
 * Time: 21:20
 */

namespace J\Storage;


use J\IPersister;

class FilePersister extends FileCache implements IPersister
{
    public function add($value){}

    public function getExpire($key)
    {
        return filemtime($key);
    }
}